Global Terrorism Database - Notebook
Simon Garnier
February 22, 2015
1 Environment setup
library(data.table)
library(dplyr)
library(ggmap)
library(graphZoo)
library(RColorBrewer)
library(animation)
library(scales)
cbf <- brewer.pal(8, "Dark2") # A colorblind friendly palette2 Data loading
select_cols <- c(1:4, 8:12, 14:15, 27, 29:30, 35:36, 41:42, 59, 81:82, 98, 101)
col_class <- rep("NULL", 134)
col_class[select_cols] <- NA
gtd <- as.data.table(
read.csv("../data/globalterrorismdb_0814dist.csv",
colClasses = col_class)) %>%
mutate(idate = ISOdate(iyear, imonth, iday))3 Attacks by country (TOP 50)
attacks <- group_by(gtd, country_txt) %>%
summarize(number = length(eventid)) %>%
ungroup() %>%
mutate(rank = rank(-number))
g <- ggplot(filter(attacks, rank < 51),
aes(x = reorder(country_txt, number), y = number)) +
geom_bar(stat = "identity", color = "white", fill = cbf[2]) +
coord_flip() +
ggtitle(bquote(atop("Terrorist attacks by country",
atop("since 1970")))) +
ylab("Number of events") +
theme_graphzoo(base_size = 13, family = "Avenir Next") +
theme(axis.title.y = element_blank())
g <- addBanner(g, font.size = 3, heights = c(1, 0.05*6/9),
l.txt = "GRAPHZOO.TUMBLR.COM",
r.txt = "SOURCE: GLOBAL TERRORISM DATABASE")
g
Figure 1: Number of terrorist attacks by country according to the Global Terrorism Database.
4 Casualties by country (TOP 50)
casualties <- group_by(gtd, country_txt) %>%
summarize(number = sum(nkill, na.rm = TRUE)) %>%
ungroup() %>%
mutate(rank = rank(-number))
g <- ggplot(filter(casualties, rank < 51),
aes(x = reorder(country_txt, number), y = number)) +
geom_bar(stat = "identity", color = "white", fill = cbf[2]) +
coord_flip() +
ggtitle(bquote(atop("Terrorist attacks by country",
atop("since 1970")))) +
ylab("Number of casualties") +
theme_graphzoo(base_size = 13, family = "Avenir Next") +
theme(axis.title.y = element_blank())
g <- addBanner(g, font.size = 3, heights = c(1, 0.05*6/9),
l.txt = "GRAPHZOO.TUMBLR.COM",
r.txt = "SOURCE: GLOBAL TERRORISM DATABASE")
g
Figure 2: Total number of casualties resulting from terrorist attacks by country according to the Global Terrorism Database.
5 Worldwide locations of terrorist attacks since January 2000
gtd_2000 <- filter(gtd, iyear > 1999) %>%
mutate(nkill = replace(nkill, is.na(nkill), 0),
nwound = replace(nwound, is.na(nwound), 0)) %>%
mutate(nvic = nkill + nwound)
vic <- group_by(gtd_2000, idate) %>%
summarize(count = sum(nvic)) %>%
arrange(idate) %>%
mutate(cum_count = cumsum(count))
start <- seq(ISOdate(2000, 1, 1), max(gtd_2000$idate, na.rm = TRUE), by = "1 week")
end <- seq(ISOdate(2000, 1, 8), max(gtd_2000$idate, na.rm = TRUE), by = "1 week")
base <- ggplot() +
borders("world", colour = "gray50", size = 1) +
coord_fixed() +
theme_minimal(base_size = 2.5*18) +
theme(legend.position = "top",
legend.title.align = 0.5,
axis.line = element_blank(),
axis.text = element_blank(),
axis.ticks = element_blank(),
axis.title = element_blank(),
panel.grid.major = element_blank(),
panel.grid.minor = element_blank())
ani.options(ani.height = 1440, ani.width = 2560,
interval = 1/12, loop = FALSE)
if (!file.exists("notebook_files/figure-html/figure_3.mp4")) {
saveVideo({
for (i in 1:length(end)) {
tmp1 <- filter(gtd_2000, idate >= start[i] & idate < end[i])
tmp2 <- filter(gtd_2000, idate < end[i])
g <- base +
geom_point(data = tmp1, aes(x = longitude, y = latitude, size = nvic), color = "dodgerblue4") +
geom_point(data = tmp2, aes(x = longitude, y = latitude, size = nvic), color = "tomato3", alpha = 0.1) +
annotate("text", x = -147, y = 0, label = format(start[i], "%Y-%m-%d"), size = 2.5*4) +
scale_size_continuous(name = "Victims\n(deaths and injuries)",
limits = c(0, max(gtd_2000$nvic, na.rm = TRUE)),
range = 2.5*c(2, 12),
breaks = seq(0, 1250, 250),
labels = paste0("≥ ", seq(0, 1250, 250), " "))
g <- addBanner(g, font.size = 2.5*5, heights = c(1, 0.03*16/9),
l.txt = "GRAPHZOO.TUMBLR.COM",
r.txt = "SOURCE: GLOBAL TERRORISM DATABASE")
ins <- ggplot(filter(vic, idate < end[i]),
aes(x = idate, y = cum_count)) +
geom_line(size = 2.5*2, color = "dodgerblue4") +
geom_line(data = vic, size = 2.5*2, color = "tomato3", alpha = 0.1) +
xlim(start[1], end[length(end)]) +
theme_minimal(base_size = 2.5*14) +
xlab(NULL) +
scale_y_continuous(name = "Cumulative number\nof victims\n", labels = comma,
limits = c(0, max(vic$cum_count)))
grid.newpage()
print(g, vp = viewport(width = 1, height = 1, x = 0.5, y = 0.5))
print(ins, vp = viewport(width = 0.29, height = 0.29, x = 0.01, y = 0.35, just = "left"))
}
},
video.name = "notebook_files/figure-html/figure_3.mp4",
other.opts = "-vcodec libx264 -vb 20M -pix_fmt yuv420p")
}
cat("<video controls><source src='notebook_files/figure-html/figure_3.mp4' type='video/mp4'>Your browser does not support the video tag.</video>")Figure 3: Weekly locations of all terrorist attacks since January 2000.
6 Locations of terrorist attacks in the US since January 1970
gtd_usa <- filter(gtd, country == 217) %>%
mutate(nkill = replace(nkill, is.na(nkill), 0),
nwound = replace(nwound, is.na(nwound), 0)) %>%
mutate(nvic = nkill + nwound)
g <- ggplot() +
borders("state", colour = "gray50") +
geom_point(data = gtd_usa,
aes(x = longitude, y = latitude, size = nvic),
color = cbf[2], alpha = 0.1) +
coord_map("gilbert") +
xlim(-125, -66) + ylim(25, 50) +
ggtitle("Locations of terrorist attacks in the US since 1970\n") +
theme_graphzoo(base_size = 13, family = "Avenir Next") +
theme(legend.position = "bottom",
legend.title.align = 0.5,
axis.line = element_blank(),
axis.text = element_blank(),
axis.ticks = element_blank(),
axis.title = element_blank(),
panel.grid.major = element_blank(),
panel.grid.minor = element_blank(),
plot.margin = unit(c(1, 0, 0, 0), "lines")) +
scale_size_continuous(name = "Number of victims\n(deaths and injuries)",
limits = c(0, max(gtd_usa$nvic, na.rm = TRUE)),
range = c(4, 14),
breaks = seq(0, 1250, 250),
labels = paste0("≥ ", seq(0, 1250, 250), " "))
g <- addBanner(g, font.size = 4, heights = c(1, 0.05* 9/7),
l.txt = "GRAPHZOO.TUMBLR.COM",
r.txt = "SOURCE: GLOBAL TERRORISM DATABASE")
png("notebook_files/figure-html/figure_4-1.png", bg = '#F0F0F0', width = 9, height = 7, unit = "in", res = 300)
g
dev.off()
Figure 4:Locations of all terrorist attacks in the US since January 1970.
7 Locations of terrorist attacks in France since January 1970
gtd_france <- filter(gtd, country == 69 | country == 238) %>%
mutate(nkill = replace(nkill, is.na(nkill), 0),
nwound = replace(nwound, is.na(nwound), 0)) %>%
mutate(nvic = nkill + nwound)
g <- ggplot() +
borders("france", colour = "gray50") +
geom_point(data = gtd_france,
aes(x = longitude, y = latitude, size = nvic),
color = cbf[2], alpha = 0.1) +
coord_map("gilbert") +
#xlim(-125, -66) + ylim(25, 50) +
ggtitle("Locations of terrorist attacks in France since 1970\n") +
theme_graphzoo(base_size = 13, family = "Avenir Next") +
theme(legend.position = "bottom",
legend.title.align = 0.5,
axis.line = element_blank(),
axis.text = element_blank(),
axis.ticks = element_blank(),
axis.title = element_blank(),
panel.grid.major = element_blank(),
panel.grid.minor = element_blank(),
plot.margin = unit(c(1, 0, 0, 0), "lines")) +
scale_size_continuous(name = "Number of victims\n(deaths and injuries)",
limits = c(0, max(gtd_france$nvic, na.rm = TRUE)),
range = c(4, 14),
breaks = seq(0, 75, 25),
labels = paste0("≥ ", seq(0, 75, 25), " "))g <- addBanner(g, font.size = 4, heights = c(1, 0.05* 9/7),
l.txt = "GRAPHZOO.TUMBLR.COM",
r.txt = "SOURCE: GLOBAL TERRORISM DATABASE")
png("notebook_files/figure-html/figure_5-1.png", bg = '#F0F0F0', width = 7, height = 7, unit = "in", res = 300)
g
dev.off()
Figure 5:Locations of all terrorist attacks in France since January 1970.